A series of conformationally restricted Gabapentin analogues has been synthesised. The pyrrolidine analogue (R)-2-Aza-spiro[4.5]decane-4-carboxylic acid hydrochloride (3a) had an IC50 of 120 nM, similar to that of Gabapentin (IC50 = 140 nM), at the Gabapentin binding site on the alpha2delta subunit of a calcium channel. Compound (3a) also reversed carrageenan induced hyperalgesia in rats.
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| http://dx.doi.org/10.1016/s0960-894x(99)00383-2 | DOI Listing |
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